/Engine/Source/Runtime/RHI/Public/PipelineFileCache.h
FPipelineFileCacheManager: The RHI-level backend forFShaderPipelineCache, responsible for tracking PSOs and their usage stats as well as dealing with the pipeline cache files. It is not expected that games or end-users invoke this directly, they should be callingFShaderPipelineCachewhich exposes this functionality in a usable form.
struct FPSOUsageData
uint16
EngineFlags
uint32
PSOHash
uint64
UsageMask